Fastening device



FIG. 1 is a front perspective view of a fastening device.

FIG. 2 is a top view of the fastening device shown in FIG. 1

FIG. 3 is bottom view of the fastening device shown in FIG. 1.

FIG. 4 is a left side view of the fastening device shown in FIG. 1.

FIG. 5 is a first end view of the fastening device shown in FIG. 1.

FIG. 6 is a second end view of the fastening device shown in FIG. 1, opposite the view of FIG. 5; and,

FIG. 7 is a front perspective view of the fastening device shown in FIGS. 1-7, showing the opposing ends coupled together.

The broken lines in the drawings illustrate portions of the fastening device and form no part of the claimed design. The right side view of the fastening device is a mirror image of FIG. 4. 

CLAIM The ornamental design for a fastening device, as shown and described. 